A one-piece sitting posture sensing waistcoat
By integrating a high-precision three-axis inertial sensor and a vibration motor into a one-piece posture sensing vest, the problems of limited monitoring range, poor wearing comfort, and insufficient data accuracy in existing technologies are solved, realizing high-precision, real-time posture monitoring and correction functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGHUA UNIV
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-09
AI Technical Summary
Existing posture monitoring products suffer from limited monitoring range, poor wearing comfort, and insufficient data accuracy, making it difficult to meet the demand for convenient, accurate, and comfortable posture monitoring.
It adopts a one-piece posture-sensing vest design, including a Y-shaped vest body and a high-precision three-axis inertial sensor, integrating a control module and a vibration motor. It connects to mobile devices via wireless communication to monitor and remind users of their sitting posture in real time.
It achieves high-precision, real-time posture monitoring, reduces data inaccuracies caused by loose parts or positional shifts, provides a convenient and comfortable user experience, and corrects poor posture through vibration reminders.
Smart Images

Figure CN224330429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of posture sensing devices, and in particular to a one-piece posture sensing vest. Background Technology
[0002] With the rise of the digital age and the rapid development of technology and the internet, modern lifestyles and work habits mean that most people spend long periods of time sitting. Prolonged periods of heavy desk work and poorly designed workplaces easily lead to unintentional poor posture. Poor posture not only affects personal image but can also cause health problems such as scoliosis, neck, shoulder, and back pain. Therefore, accurate and convenient posture monitoring technology is of great significance for protecting people's health and maintaining good posture. With technological advancements, various posture monitoring products have emerged on the market.
[0003] Currently, common posture monitoring devices mainly include wearable sensor-based devices and external monitoring devices. Wearable sensor products often adopt a split design, such as some smart bracelets or chest straps. They indirectly infer sitting posture by monitoring human movement data through sensors. In terms of construction, smart bracelets typically consist of a main display screen, built-in sensors such as accelerometers and gyroscopes, and a strap, collecting wrist movement information by being worn on the wrist; chest straps generally consist of an elastic band and sensor modules fixed to it, worn on the chest.
[0004] However, these separate wearable devices have many drawbacks. In terms of location and connectivity, smart bracelets are relatively far from the core of the body, making it difficult to accurately infer posture based solely on wrist movements, and prone to misjudgment during normal hand movements. While chest straps are closer to the core, their fit is inconsistent during wear, and the separate design makes the process cumbersome and uncomfortable for extended periods. In practical applications, many users have reported that these products are inconvenient to wear, requiring frequent disassembly and re-wearing when changing clothes, significantly impacting user experience and product promotion. External monitoring devices include pressure sensor cushions placed on seats or camera monitoring devices mounted on desktops. Pressure sensor cushions typically consist of a pressure sensing layer, a signal processing module, and a wireless transmission module. When a person sits on the cushion, the pressure sensing layer detects the pressure distribution to determine posture. However, it can only monitor the pressure exerted on the seat, not the overall posture, and is limited by the seating scenario; monitoring ceases when the user leaves the seat. Camera monitoring devices analyze images of people, which poses privacy and security risks and is easily affected by environmental factors such as lighting, resulting in unstable monitoring accuracy.
[0005] The main shortcomings of existing technologies are as follows:
[0006] 1. Limitations of Existing Posture Monitoring Products: Current posture monitoring products on the market come in various forms, such as smart bracelets, lumbar support devices, and sensors built into chairs. However, these products generally suffer from incomplete monitoring. For example, smart bracelets primarily monitor hand movements and cannot accurately reflect overall posture; lumbar support devices only focus on the degree of lumbar flexion, lacking effective monitoring of shoulder and back postures.
[0007] 2. Wearing comfort issues: Some posture monitoring devices are bulky and have complicated wearing methods, affecting users' daily activities. For example, some hard-shell back support monitoring devices are not only inconvenient to wear, but also cause discomfort when worn for a long time, resulting in low user willingness to use them.
[0008] 3. Insufficient Data Accuracy and Analysis: Existing products often collect data that is not accurate enough, and their analytical functions are limited. Most can only make a simple judgment about whether someone is slouching, and cannot subdivide and analyze various poor sitting postures in depth, thus failing to provide users with targeted improvement suggestions.
[0009] According to the research "Research Status and Development Trend of Intelligent Posture Correction Clothing" by Yan Fangying, published in Silk, Volume 36, Issue 2, 2023, and the research "Research Status and Development Trend of Intelligent Posture Correction Clothing" by Hou Yujie, published in Journal of Textile Research, Volume 45, Issue 8, 2024, the existing posture monitoring technologies described there are similar problems with accuracy, convenience and limitations.
[0010] In conclusion, existing posture monitoring devices are insufficient to meet people's needs for convenient, accurate, and comfortable posture monitoring, and there is an urgent need for a new technological solution to address these issues. Utility Model Content
[0011] The purpose of this invention is to overcome the shortcomings of the existing technology, such as limited monitoring range and poor wearing comfort, and to provide a one-piece posture sensing vest.
[0012] The objective of this utility model can be achieved through the following technical solutions:
[0013] A one-piece posture-sensing vest includes a vest body and a three-axis inertial sensor. The vest body has a Y-shaped structure, including a back piece and left and right shoulder pieces symmetrically distributed on both sides of the back piece. The three-axis inertial sensor is detachably installed on the side of the back piece closer to the user. Each of the back piece, left shoulder piece, and right shoulder piece has a snap fastener on both sides of the ends that are far apart from each other. One side of the back piece is connected to the left shoulder piece, and the other side is connected to the right shoulder piece. The sides of the left and right shoulder pieces that are close to each other are connected to each other.
[0014] Preferably, the back panel has a mounting groove on the side closest to the human body. There are multiple mounting grooves, each corresponding to a vertebra of the human spine. The triaxial inertial sensor is snapped into the mounting groove.
[0015] Preferably, the vest body is also provided with a control module, which is installed on the left shoulder piece away from the back piece. The control module includes a main control chip and a power supply, and the main control chip is connected to a three-axis inertial sensor.
[0016] Preferably, the control module includes a communication unit, which is electrically connected to the main control chip and wirelessly connected to the mobile device.
[0017] Preferably, the main control chip is also connected to a vibration motor, which is installed on the right shoulder piece near the back piece and on the side closest to the human body.
[0018] Preferably, the right shoulder piece has a mesh pocket and an inner zippered pocket at the end away from the back piece, and the measuring module is placed in the inner zippered pocket.
[0019] Preferably, the vest body is a multi-layered fabric structure with invisible interlayers between the fabric layers. The triaxial inertial sensor is installed in the invisible interlayers, and the control module is connected to the triaxial inertial sensor through a flexible circuit.
[0020] Preferably, the main control chip is a Mega2560Pro and the communication unit is an Esp8266-01s.
[0021] Preferably, both the left and right shoulder panels have an outer pocket at the end furthest from the back panel, and the opening of the outer pocket has a waterproof zipper.
[0022] Preferably, the snap fastener includes an explosion-proof webbing for adjusting the length of the snap fastener, one end of which is fixed to the vest body, and the other end is adjustable to the snap fastener.
[0023] Compared with the prior art, the present invention has the following advantages:
[0024] (1) This solution adopts a one-piece vest with a Y-shaped structure, which is convenient and comfortable to wear and can ensure a good fit. High-precision three-axis inertial sensors are embedded in key parts of the vest, which can perceive data of different sitting postures of the human body in real time and accurately. Compared with traditional visual monitoring equipment, this contact monitoring method is not affected by factors such as light and obstruction, and has higher perception accuracy. Moreover, since all modules are integrated on a one-piece vest, the problem of inaccurate data caused by loose connections or positional misalignment of components in split devices is avoided.
[0025] (2) This solution adopts an innovative one-piece vest design. This smart vest reduces costs from the source of production by reducing the number of parts and simplifying the assembly process. At the same time, its high accuracy and stability reduce after-sales maintenance costs caused by product failure or inaccuracy, and improve the product's market competitiveness.
[0026] (3) This solution has a vibration motor installed on the shoulder of the vest, which can issue vibration reminders to the user based on the user's posture and the sensing data of the three-axis inertial sensor, and issue a timely and direct posture correction signal. In addition, the communication unit of the control module is wirelessly connected to the mobile device, and the sensed posture signal is sent to the mobile device for easy storage and intuitive viewing. Attached Figure Description
[0027] Figure 1 A schematic diagram of the unfolded one-piece posture-sensing vest provided by this utility model;
[0028] Figure 2 A front view of the one-piece posture-sensing vest provided by this utility model;
[0029] Figure 3 Rear view of the one-piece posture-sensing vest provided by this utility model;
[0030] Figure 4 A schematic diagram of the internal structure of the one-piece posture-sensing vest provided by this utility model;
[0031] Figure 5 A schematic diagram of the structure of the left shoulder piece provided by this utility model;
[0032] Figure 6 Electrical schematic diagram of the vest control module provided by this utility model;
[0033] In the diagram: 1. Vest body; 10. Waterproof zipper; 11. Left woven buckle; 12. Right woven buckle; 13. Left buckle; 14. Right buckle; 15. Center buckle; 16. Center woven buckle; 17. Right front concealed zipper; 20. Mounting slot; 21. Three-axis inertial sensor; 22. Vibration motor; 23. Circuit connection wire; 24. Power supply; 25. Main control chip; 26. Communication unit; 30. Inner zippered pocket; 31. Mesh pocket. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0039] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0040] Example 1
[0041] like Figure 1-5As shown, this embodiment provides a one-piece posture sensing vest, including a vest body 1 and a three-axis inertial sensor 21; the vest body 1 has a Y-shaped structure, including a back piece and a left shoulder piece and a right shoulder piece symmetrically distributed on both sides of the back piece; the three-axis inertial sensor 21 is detachably installed on the side of the back piece closer to the user; the back piece, the left shoulder piece and the right shoulder piece are provided with snap fasteners on both sides of the ends that are far apart from each other; one side of the back piece is connected to the left shoulder piece and the other side is connected to the right shoulder piece; the sides of the left shoulder piece and the right shoulder piece that are close to each other are connected to each other.
[0042] Working principle: The three-axis inertial sensor 21 is installed on the back piece of the vest body 1, which is close to the side of the human body and located at the position of the human spine. The back piece is attached to the back of the human body, and the left and right shoulder pieces are placed on the two shoulders of the human body and bent to the front of the human body. The two sides of the back piece are connected to the left and right shoulder pieces respectively through the snap fasteners. Then the left and right shoulder pieces are connected to the front of the human body, which completes the wearing of the one-piece sitting posture sensing vest. Subsequently, the three-axis inertial sensor 21 senses the wearer's spinal curvature and sitting posture.
[0043] This solution utilizes a one-piece vest with a Y-shaped structure, ensuring convenient and comfortable wear and a snug fit. High-precision three-axis inertial sensors are embedded in key areas of the vest, enabling real-time and accurate data sensing of different sitting postures. Compared to traditional visual monitoring equipment, this contact-based monitoring method is unaffected by factors such as light and obstructions, resulting in higher sensing accuracy. Furthermore, because all modules are integrated into a single vest, it avoids the inaccurate data problems caused by loose connections or misalignment in separate devices.
[0044] Preferred implementation methods, such as Figure 4 As shown, the back panel has a mounting slot 20 on the side closest to the human body. There are multiple mounting slots 20, and each mounting slot 20 corresponds to a vertebra of the human spine. A three-axis inertial sensor 21 is snapped into the mounting slot 20.
[0045] In this embodiment, the vest body 1 is also equipped with a control module, which is installed on the left shoulder piece away from the back piece. The control module includes a main control chip 25 and a power supply 24. The main control chip 25 is connected to a three-axis inertial sensor 21. The control module includes a communication unit 26, which is electrically connected to the main control chip 25 and wirelessly communicates with a mobile device. The main control chip 25 is also connected to a vibration motor 22, which is installed on the right shoulder piece near the back piece and close to the body.
[0046] In this embodiment, the right shoulder piece is provided with a mesh pocket 31 and an inner zippered pocket 30 at the end away from the back piece, and the measuring module is placed in the inner zippered pocket 30.
[0047] In this embodiment, as Figure 5 As shown, the vest body 1 has a multi-layered fabric structure, with invisible interlayers formed between the fabric layers. A three-axis inertial sensor 21 is installed inside the invisible interlayer, and the control module is connected to the three-axis inertial sensor 21 through a flexible circuit. Alternatively, a right front invisible zipper 17 can be provided in front of the right shoulder piece, which can be used to open the interlayer.
[0048] In this embodiment, the main control chip 25 is a Mega2560Pro, and the communication unit 26 is an Esp8266-01s.
[0049] In this embodiment, as Figure 2-3 As shown, both the left and right shoulder panels have external pockets at the ends furthest from the back panel, and the openings of the external pockets have waterproof zippers 10. The snap fasteners include an adjustable snap fastener and an explosion-proof webbing for adjusting the snap fastener length. One end of the explosion-proof webbing is fixed to the vest body 1, and the other end can be adjusted to connect to the adjustable snap fastener.
[0050] In conjunction with the above specific implementation methods, such as Figure 1-6 As shown, this embodiment also provides a more specific implementation method. The vest body 1 is made of soft and breathable fabric, conforming to the curves of the human body, providing comfortable and unrestricted wear. A high-precision three-axis inertial sensor 21 is embedded in the back of the vest body, capable of collecting real-time posture and tilt angle data of the human body in different sitting postures. The sensor converts the sensor monitoring signals into digital signals through a built-in micro signal processing module and transmits them to the main control chip 25 of the vest body 1. Based on the received signals, the main control chip 25 outputs incorrect postures such as hunching, stooping, and tilting. Once an incorrect sitting posture is detected, the vest will emit a vibration reminder via the built-in vibration motor 22, and simultaneously transmit the sitting posture data to the user's mobile device via the communication unit 26. The user can view the data in a mobile application, or use a mobile software to view a sitting posture analysis report, historical data, and personalized improvement suggestions.
[0051] The posture-sensing vest of this embodiment integrates posture sensing, reminder, and data recording functions. It is easy to wear, provides accurate monitoring, and is suitable for people who work or study at a desk for long periods of time. It helps prevent cervical and lumbar spine diseases and has high practicality and market promotion value.
[0052] In this embodiment, the vest body 1 adopts a one-piece cut design, made of highly elastic and breathable fabric to ensure comfortable wear and a close fit to the human body. Multiple key functional modules are integrated into the vest body, eliminating the need for additional complex assembly or connecting parts. A high-precision three-axis inertial sensor is built into the back of the vest body 1. The sensor fits closely to the spine on the vest, enabling real-time and accurate acquisition of acceleration and angular velocity data of the human body in different postures. The back sensor can accurately detect changes in the curvature and angle of the spine.
[0053] The sensor is connected to the main control chip 25 via flexible circuit connection 23. This connection method not only ensures the stability and reliability of signal transmission but also makes full use of the internal space of the one-piece housing, reducing the inconvenience caused by messy wiring. Furthermore, since all modules are integrated into a single housing, the inaccurate data problems caused by loose connections or misalignment of components in separate devices are avoided. For example, even with frequent body movement during daily activities, the integrated design ensures that the sensor always accurately collects data, and the data processing module can process and analyze the data promptly and stably.
[0054] Specifically, to make the vest adaptable to a wider range of body types and styles, this invention designs a unisex workwear-style adjustable vest. It uses woven straps and adjustable buckles to adjust the size for a snug fit. Based on a 160 / 84A body type, three fabrics are combined in pairs to create an adjustable, one-piece, embedded vest. Two left-side woven buckles 11 and two right-side woven buckles 12 are respectively located on both sides of the back panel. Two left-side snap fasteners 13 are located on the outer edge of the left shoulder panel, and two center woven buckles 16 are fixed to the inner edge. Two right-side snap fasteners 14 are fixed to the outer edge of the right shoulder panel, and two center snap fasteners 15 are located on the inner edge. Through the combination of the snap fasteners and woven buckles, the vest is worn by the user. The length of the woven straps can be adjusted to change the vest's size, expanding its usability.
[0055] like Figure 1 As shown, the one-piece posture sensing vest mainly includes the vest body 1, a three-axis inertial sensor 21, a vibration motor 22, a power supply 24, a main control chip 25, and a communication unit 26. The vest body 1 is made of soft and lightweight fabric, which can conform to the curves of the human back and shoulders to ensure good contact between the sensor and the human body.
[0056] The vest body 1 has multiple mounting slots 20 on its inner side for fixing triaxial inertial sensors 21. These mounting slots are distributed at key vertebral positions in the center of the human spine. Vibration motors 22 are mounted on the shoulders, and the circuitry can be encapsulated and placed in the hidden compartment of the vest body 1. An inner zippered pocket 30 and a mesh pocket 31 are provided in the embedded compartment on the side of the shoulder piece that is in contact with the human body for storing electronic components and power supply equipment.
[0057] The vest is made of breathable and comfortable fabric. The outer two layers of the vest body are made of 70D grid nylon taslon fabric and a blend of 70% polyester and 30% viscose fiber, while the inner layer uses 3D breathable mesh fabric. The main binding strip is made of 2.5cm wide woven tape, and the adjustable webbing 11, 12, and 16 uses 1.5cm explosion-proof webbing. The adjustable buckles are 1.5cm wide and 3.8cm long for 13 and 14, and 2.5cm wide, 5cm long, and 15cm long for 15cm.
[0058] The triaxial inertial sensor 21 uses the JY901s, which is a triaxial inertial sensor integrating an accelerometer, gyroscope, and magnetometer, also known as an inertial measurement unit. The JY901s can output triaxial acceleration, triaxial angular velocity, triaxial magnetic field, triaxial angle, and quaternions. The measurement range is ±16° for acceleration, ±2000° / s for gyroscope, ±180° for X and Z axes, ±90° for Y axis, and ±2° for magnetic field. The angle accuracy is ±0.2° for X and Y axes and ±1° for Z axis. The sensor should be mounted perpendicular to the ground and attached to the back panel, and the sensor must be installed in a vertical orientation.
[0059] The vibration motor acts as an actuator. After the main control chip receives information from the sensors, it sends commands to the actuator based on the judgment results, causing the vibration motor to operate. A high-level signal triggers the operation, while a low-level signal cuts it off. The main control chip is a Mega2560Pro with a built-in timer, which can be used to time the duration of prolonged sitting monitored by the posture system. It integrates wired and wireless communication interfaces to ensure communication between different system components. The microcontroller processes the data collected from the sensors and transmits it to Blinker via Wi-Fi, storing the data in the database in the format of (x, y, z) measurements and tilt angle.
[0060] The communication unit uses the ESP8266-01S, which wirelessly transmits data signals such as time, acceleration, angular velocity, and angle acquired by the sensor to Blinker for processing, display, and recording. As the optimal wireless communication technology for attitude sensing systems, the communication unit ensures communication between different system components and can be used anywhere, especially in work and study environments.
[0061] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A one-piece sitting posture sensing vest, characterized in that, The vest body (1) and a three-axis inertial sensor (21) are included. The vest body (1) has a Y-shaped structure, including a back piece and a left shoulder piece and a right shoulder piece symmetrically distributed on both sides of the back piece. The three-axis inertial sensor (21) can be detachably installed on the side of the back piece closer to the user. The back piece, the left shoulder piece and the right shoulder piece are provided with buckles on both sides of the ends that are far apart from each other. One side of the back piece is connected to the left shoulder piece and the other side is connected to the right shoulder piece. The sides of the left shoulder piece and the right shoulder piece that are close to each other are connected to each other.
2. A one-piece sit-up awareness vest according to claim 1, characterized in that, The back panel has a mounting slot (20) on the side closest to the human body. There are multiple mounting slots (20), and each mounting slot (20) corresponds to a vertebra of the human spine. The triaxial inertial sensor (21) is snapped into the mounting slot (20).
3. A one-piece posture awareness vest according to claim 1, wherein, The vest body (1) is also provided with a control module. The control module is installed on the left shoulder piece away from the back piece. The control module includes a main control chip (25) and a power supply (24). The main control chip (25) is connected to a three-axis inertial sensor (21).
4. A one-piece sit-up awareness vest according to claim 3, wherein, The control module includes a communication unit (26), which is electrically connected to the main control chip (25) and wirelessly connected to the mobile device.
5. A one-piece sit-up awareness vest according to claim 3, wherein, The main control chip (25) is also connected to a vibration motor (22), which is installed on the right shoulder piece near the back piece and on the side close to the human body.
6. A one-piece sit-up awareness vest according to claim 3, wherein, The right shoulder panel has a mesh pocket (31) and an inner zippered pocket (30) at the end away from the back panel.
7. A one-piece sit-up awareness vest according to claim 3, wherein, The vest body (1) is a multi-layer fabric stacked structure, with each layer of fabric forming an invisible interlayer. The triaxial inertial sensor (21) is installed in the invisible interlayer, and the control module is connected to the triaxial inertial sensor (21) through a flexible circuit.
8. A one-piece sit-up awareness vest according to claim 4, wherein, The main control chip (25) is a Mega2560Pro, and the communication unit (26) is an Esp8266-01s.
9. A one-piece posture awareness vest according to claim 1, wherein, Both the left and right shoulder panels have an outer pocket at the end furthest from the back panel, and the opening of the outer pocket has a waterproof zipper (10).
10. The one-piece sitting awareness vest of claim 1, wherein, The buckle includes an explosion-proof webbing for adjusting the buckle length. One end of the explosion-proof webbing is fixed to the vest body (1), and the other end can be adjusted to connect to the buckle.